3 ms·And a very ripe banana can have an ABV value of 0.4%.by groestl 3y agoAnd a very ripe banana can have an ABV value of 0.4%.jameshart 3y agoThat sugar in fruit gradually turns into alcohol should not be a surprise to anyone. Really ‘ripe’ grape juice can have an ABV of over 14% :)groestl 3y ago;) It hardly resembles the fruit anymore though :)